Start by checking the "Possible Causes" listed above. Visually inspect the related wiring harness and connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector's pins.
The cost to diagnose the B2220 code is 1.0 hour of labor. The auto repair's diagnosis time and labor rates vary by location, vehicle's make and model, and even your engine type. Most auto repair shops charge between $75 and $150 per hour.
The Power Back Door system enables the back door to be opened and closed automatically by a motor in accordance with signals from the back door control switch or the power back door button on an electrical key transmitter sub-assembly or door control transmitter. In addition, a door control switch assembly has been provided on the back door for convenience.
This Diagnostic Trouble Code (DTC) is output when the Multiplex Network Door ECU detects a malfunction in the motor built into the Power Back Door (PBD) Unit Assembly set Left (LH) or Right (RH).
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